After all, he did not have the so-called "golden finger" as recorded in novels after time-traveling.
This point also made him very doubtful.
Why does everyone else seem to have a golden finger after time traveling, but when it comes to him, he does not even have this option?
More than once, in the dead of night, when all was quiet, he would talk to himself in his mind, muttering to the empty air in front of him.
However, no matter how Lin Yi called out, no matter how loudly he shouted, there was indeed no such system in existence.
This undoubtedly left Lin Yi quite frustrated for a while.
Precisely because there was no existence of a golden finger, precisely because there was no such system, Lin Yi had no idea whatsoever about how to manufacture firearms.
He did have the intention to develop firearms, but he genuinely lacked the capability.
Although he roughly knew some simple principles, actually operating was indeed very difficult.
